I've heard that Gateway's clear plastic is worth a bit more than stock prices. What do you all think about these magics? Brand new, no ink, and 175g each...

Based on my experience, you could get upwards of $20 for the clear Evo Magic, if you're patient and find the right buyer.
The other Magic probably isn't worth anything over stock price. I had one just like it. Nothing really special that I know about.